What case creation solution would you propose for the examiners’ mobile app?

Answer options:

A.Custom connectors
B.Business rule
C.PCF
D.Business process flow
E.Power Virtual Agents

Correct Answer: D 
Power Automate provides five types of flows: Automated — this cloud flow type is triggered by an event, like when an email comes from your manager
Instant — this cloud flow type is triggered manually, like when you push a button
Scheduled — this cloud flow type is triggered on a schedule, like sending a report on every working day at 8 am.
Desktop — this flow type automates processes for your desktop and web applications
Business process flow — this flow type guides users step-by-step through the business process.
You can consider using a business process flow in the app. There are two business process flows: embedded within a model-driven app and a standalone (immersive) flow. 
For your canvas app, you can create an immersive business process flow. Then use the Dataverse APIs to access the flow and expose it in your app. 
All other options are incorrect. 
For more information about Power Automate Business process flow, please visit the below URLs: 

https://docs.microsoft.com/en-us/learn/modules/power-automate-architecture/6-business-process-flows
https://docs.microsoft.com/en-us/power-automate/business-process-flows-overview
https://powerapps.microsoft.com/en-us/blog/using-business-process-flows-in-a-canvas-app/